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Tennantite-(Hg)

Collectors Summary

Color schwarz
Streak color schwarz
Lustre Metallglanz
Fracture muschelig
Crystal System kubisch, I43m

Chemism

Chemical formula

Cu6(Cu4Hg2)As4S13

Chemical composition

Arsen, Kupfer, Quecksilber, Schwefel

Unit weight: 1753.184908 u; Number of atoms in the formula: 29

Info

Empirical formula:

Cu6(Cu4Hg2)As4S13

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

23.78

13

44.83

32.0655000

416.8515000
Copper

Cu

36.25

10

34.48

63.5463000

635.4630000
Arsenic

As

17.09

4

13.79

74.9216020

299.6864080
Mercury

Hg

22.88

2

6.90

200.5920000

401.1840000

IMA status

anerkannt - CNMNC Newsletter 58, Oktober-November (2020)

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tetrahedrite Group  ⇒ Tennantite series

Optical Properties

Color

schwarz

Additional color information

Im Auflicht grau mit Stich nach creme

Streak color

schwarz

Lustre

Metallglanz

Bireflectance

isotrop

Anisotropism

isotrop

Crystallography

Crystal System

kubisch

Class (H-M)

43m

Space Group number

217

Space Group

I43m

Cell parameters a (Å)

10.455(7)

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

1142.805

Crystal structure

Tetraedrit-Gruppe; Struktur ermittelt

X-Ray Powder Diffraction

4.268(6), 3.018(100), 2.614(22), 2.464(4), 2.050(4), 1.909(10), 1.848(38), 1.576(20)
XRD chart Tennantite-(Hg)

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Density (g/cm³)

4.838 (berechnet)

5.095 ( ρ calc. Mineralienatlas )

Fracture

muschelig

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Schweiz/Wallis, Kanton/Goms, Bezirk/Binntal/Binn/Fäld (Imfeld, Im Feld)/Grube Lengenbach

Type material

Mineralogische Sammlungen des Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI)

Collection number of type material

19919

Paragenesis of type material

Realgar

Preface

Name from

Systematik

Author (Name, Year)

Cristian Biagioni, Jiri Sejkora, Thomas Raber, Philippe Roth, Yves Moëlo, Zdeněk Dolníček, und Marco Pasero (2021)

References

Biagioni, C., Sejkora, J., Raber, T., Roth, P., Moëlo, Y., Dolníček, Z., and Pasero, M.: Tennantite-(Hg), IMA 2020-063, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

Cristian Biagioni; Jiří Sejkora; Thomas Raber ; Philippe Roth; Yves Moëlo; Zdenĕk Dolníček; Marco Pasero: Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, a new tetrahedrite-group mineral from the Lengenbach quarry, Binn, Switzerland. Mineralogical Magazine Vol. 85, Nr. 5 (2021) S. 744-751.

IMA group assignments

Other languages

German

Tennantit-(Hg)

English

Tennantite-(Hg)

Russian

Теннантит-(Hg)

CNMNC (IMA)-Number

IMA 2020-063

CNMNC symbol

Symbol

Tnt-Hg

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Vr39ZjFYakWXD6PQIDx3vg
GUID (Global unique identifier) 66FDBD56-5831-456A-970F-A3D0203C77BE
Database ID 8949